# Copyright 2021 Tianmian Tech. All Rights Reserved.
# 
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# 
#     http://www.apache.org/licenses/LICENSE-2.0
# 
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# Copyright 2019 The FATE Authors. All Rights Reserved.
# 
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# 
#     http://www.apache.org/licenses/LICENSE-2.0
# 
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

from kernel.utils import consts


class Arbiter(object):
    # noinspection PyAttributeOutsideInit
    def _register_convergence(self, is_stopped_transfer):
        self._is_stopped_transfer = is_stopped_transfer

    def sync_converge_info(self, is_converged, suffix=tuple()):
        self._is_stopped_transfer.remote(obj=is_converged, role=consts.PROVIDER, idx=-1, suffix=suffix)
        self._is_stopped_transfer.remote(obj=is_converged, role=consts.PROMOTER, idx=-1, suffix=suffix)


class _Client(object):
    # noinspection PyAttributeOutsideInit
    def _register_convergence(self, is_stopped_transfer):
        self._is_stopped_transfer = is_stopped_transfer

    def sync_converge_info(self, suffix=tuple()):
        is_converged = self._is_stopped_transfer.get(idx=0, suffix=suffix)
        return is_converged


Provider = _Client
Promoter = _Client
